Drug Pregnancy and Lactation allow quick search for FDA pregnancy category and AUS pregnancy category from TGA as well as breastfeeding recommendation of over 600 drug items. Breastfeeding recommendation were from lexicomp and briggs' pregnancy and lactation handbook.

Reference used:

1. Briggs, Gerald G., Roger K. Freeman, and Sumner J. Yaffe. 2011. Drugs in pregnancy and lactation, 9ed: a reference guide to fetal and neonatal risk. Philadelphia, Pa: Lippincott Williams & Wilkins
2. Lexi-Comp, Inc. (Lexi-Drugs). Lexi-Comp, Inc.; Janurary 3, 2016
3. Australian categorisation system for prescribing medicines in pregnancy.
Available from https://www.tga.gov.au/prescribing-medicines-pregnancy-database

Disclaimer:
Please double check with reference book and local registered product information.
Clinical judgement should be made on individual situation and conditions.